Newton's Laws

1. Explain Newton's first law of motion (the law of inertia) in your own words and give an example of it in action, different from the bicycle example in the video.

2. If you push a box with a force of 20 N and it accelerates at 2 m/s², what is the mass of the box?

3. Imagine you are pushing a shopping cart. How does the amount of force you need to apply to the cart change if you add more items (increase the mass) to the cart, assuming you want to maintain the same acceleration? Explain using Newton's second law.